> ## Documentation Index
> Fetch the complete documentation index at: https://help.fieldpulse.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Setting Up Formula-Based Quantities
> Save measurement formulas in FieldPulse Company Settings so a tech enters a few measurements on the estimate and the material quantity calculates itself.
> **Who uses this:** Admins build the formulas in **Company Settings**, which only the Admin role can view; technicians and office staff who can create estimates and invoices use a saved formula on a record. **Availability:** All regions.
Formula-Based Quantities saves your company's measurement math in FieldPulse so a technician enters a few numbers on an [estimate or invoice](https://www.fieldpulse.com/features/estimates-and-invoices) and the material quantity is calculated on the spot. An Admin builds each formula once in **Company Settings** — tile flooring with an added waste factor, or the number of posts required per foot of fencing — and the technician picks that formula from the **Quantity** field on the record.
## Overview
A formula-based quantity is a saved calculation that turns job measurements into a line item quantity. Each formula is built from three pieces:
* **Variables** — the values a technician enters on the record, such as Width, Length, or Roll Width. Each variable can carry a default value.
* **Fixed values** — numbers a technician cannot change, such as a waste factor, a standard depth, or a labor multiplier.
* **Operators** — multiplication, division, addition, subtraction, and parentheses, which set the math.
You build a formula once in **Company Settings**, and it is then available when adding items to estimates, invoices, and material lists. When a technician selects the formula in the **Quantity** field and enters the measurements taken on the job, FieldPulse calculates the quantity and inserts it into the record.
## Video walkthrough
## Before you begin
* Confirm your user role is **Admin**. Only the Admin role can view **Company Settings**, where formulas are built — see [User Roles and Permissions Details](/settings/users-teams/user-roles).
* Decide which numbers change from job to job and which numbers stay the same. The ones that change become variables the technician enters; the ones that stay the same become fixed values.
* Confirm the team members who will use the formula can create estimates and invoices. Admins and Team Managers hold the **Create & send Estimates/Invoices** permission by default, and an Admin can enable it for a Service Agent.
## Step-by-step setup
1. Select **Company Settings** in the left-side menu, then select **Estimates & Invoices**.
2. Select the **Formula-Based Quantities** tab, then select **Add Formula**.
3. Enter a **Formula Name** your technicians recognize. This name appears on material lists, estimates, and invoices when item quantities are entered.
4. Select **Add Variable** and enter a **Variable Name**.
5. Set a **Default Value** that populates for your technicians. A technician can override this value when needed.
6. Check **Different value for each use?** to assign a separate value every time that variable is used in the formula, even when the entries share the same name. In a formula of Width + Height + Width + Length, for example, this lets the two Width entries take different numbers.
7. Select **Save** in the variable panel, and repeat for every variable the formula needs.
8. Drag each variable from the **Variables** list into the formula area on the right, and arrange the variables in the order you want.
9. Add the math your formula needs with the multiplication, division, addition, subtraction, and parentheses buttons.
10. To lock in a value a technician cannot change, type the number in the **Enter number** field and select **Add Fixed Value**. Fixed values work well for waste factors, standard depths, and labor multipliers.
11. Enter test values under the formula to confirm it calculates as expected, then select **Save** in the top right.
## Use a saved formula on a record
Once the formula is saved, it is ready for use when adding items to estimates, invoices, and material lists.
1. On the estimate, invoice, or material list, add your item.
2. Select the arrow icon in the **Quantity** field.
3. Choose your formula from the dropdown at the top of the panel.
4. Enter the measurements you took on the job. FieldPulse calculates the **Result**.
5. Select **Insert Quantity** to place the calculated quantity on the record.
### Adjust a formula for one record
A formula sometimes needs an adjustment on the fly. If your formula measures the length of multiple surfaces, for example, a technician might find a different number of surfaces on each job. Select **Edit Formula** in the formula panel to change the formula for that record.
An additional window opens over the record, with the same variable list, operator buttons, and fixed value controls used in **Company Settings**. The technician can temporarily add a new variable — an additional surface, for instance — and then select **Apply Formula**. The original formula saved in **Company Settings** is not changed.
## On mobile
Saved formulas are also available on the FieldPulse mobile app. The formula appears on the **Add Line Item** screen under **Main Info**, where the technician enters the measurements, selects **Insert Quantity**, and then selects **Add Item** to put the line item on the record.
## Settings reference
| **Field** | **What it does** |
| --------------------------------- | -------------------------------------------------------------------------------------------------------------------- |
| **Formula Name** | Names the formula. This name appears on material lists, estimates, and invoices when item quantities are entered. |
| **Variable Name** | Names a value the technician enters on the record, such as Width, Length, or Roll Width. |
| **Default Value** | Sets the value that populates for your technicians. A technician can override it when needed. |
| **Different value for each use?** | Assigns a separate value every time that variable is used in the formula, even when the entries share the same name. |
| **Add Fixed Value** | Adds a number technicians cannot change — waste factors, standard depths, and labor multipliers. |
| **Operator buttons** | Add multiplication, division, addition, subtraction, and parentheses to the formula. |
| **Edit Formula** | Adjusts the formula on a single record without changing the version saved in **Company Settings**. |
## Interactive demo
Take the [Formula-Based Quantities interactive demo](https://app.storylane.io/share/whmpmob83jku) to see formula-based quantities in action.
## Still need help?
Reach the [FieldPulse support team](https://www.fieldpulse.com/company/contact-us) at [support@fieldpulse.com](mailto:support@fieldpulse.com) or through the chat feature in the bottom-right corner of your screen.
## Related articles
* [How to Create an Estimate](/estimates-invoices/creating/estimate)
* [How to Create an Invoice](/estimates-invoices/creating/invoice)
* [How to Use Line Item Bundles & Groupings](/estimates-invoices/creating/line-item-bundles)
* [Material Lists Overview](/inventory-materials/material-lists/material-lists)
* [User Roles and Permissions Details](/settings/users-teams/user-roles)
Your setup is working when a technician opens a line item, picks the formula, enters the measurements from the job, and the correct quantity lands on the estimate — no calculator and no guesswork on the waste factor.
## Related topics
- [How to Use Line Item Bundles & Groupings](/estimates-invoices/creating/line-item-bundles.md)
- [Creating Estimates & Invoices](/estimates-invoices/creating/index.md)
- [Setting Up Your Pricebook](/add-ons/sales-suite/pricebook.md)
- [Custom Forms Overview](/jobs/custom-forms/overview.md)